Yawning and cortisol levels in multiple sclerosis: potential new diagnostic tool

Publication date: Available online 2 May 2018 Source:Multiple Sclerosis and Related Disorders Author(s): Simon B N Thompson, Alister Coleman, Nicola Williams Yawning is a significant behavioural response and, together with cortisol, is potentially a new diagnostic marker of neurological diseases. Evidence of an association between yawning and cortisol was found which supports the Thompson Cortisol Hypothesis and thermoregulation hypotheses, indication that brain cooling occurs when yawning. 117 volunteers aged 18-69 years were randomly allocated to experimentally controlled conditions to provoke yawning. Thirty-three had been diagnosed with multiple sclerosis. Saliva cortisol samples were collected before and after yawning or after stimuli presentation in the absence of yawning. Hospital Anxiety and Depression Scale, General Health Questionnaire, demographic and health details were collected. Comparisons were made of yawners and non-yawners, healthy volunteers and MS participants. Exclusion criteria: chronic fatigue, diabetes, fibromyalgia, heart condition, high blood pressure, hormone replacement therapy, stroke. Yawners had significant differences between saliva cortisol sample 1 and 2 among healthy participants (p<.007) and MS participants (p<.003). There was significant difference between the healthy versus MS non-yawners (P<.042) but not between yawners (p<.862). These results support the Thompson Cortisol Hypothesis suggesting that cortisol levels are eleva...
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research

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Source: Journal of Molecular Liquids - Category: Molecular Biology Source Type: research
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Source: Comparative Biochemistry and Physiology Part D: Genomics and Proteomics - Category: Genetics & Stem Cells Source Type: research
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Multiple sclerosis (MS) is a chronic inflammatory demyelination disorder with an immune-mediated pathophysiology that affects the central nervous system (CNS). Like other autoimmune conditions, it has a predilection for female gender. This suggests a gender bias and a possible hormonal association. Inflammation and demyelination are hallmarks of MS. Oligodendrocytes are the myelinating cells of the CNS and these continue to be generated by oligodendrocyte precursor cells (OPCs). The process of remyelination represents a major form of plasticity in the developing adult CNS. Remyelination does occur in MS, but the process is...
Source: European Neurology - Category: Neurology Source Type: research
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Source: Acta Medica Portuguesa - Category: General Medicine Tags: Acta Med Port Source Type: research
Publication date: July 2018Source: Multiple Sclerosis and Related Disorders, Volume 23Author(s): Simon B.N. Thompson, Alister Coleman, Nicola WilliamsAbstractYawning is a significant behavioural response and, together with cortisol, is potentially a new diagnostic marker of neurological diseases. Evidence of an association between yawning and cortisol was found which supports the Thompson Cortisol Hypothesis and thermoregulation hypotheses, indication that brain cooling occurs when yawning. 117 volunteers aged 18–69 years were randomly allocated to experimentally controlled conditions to provoke yawning. Thirty-three...
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research
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